Antisubstitute liquid-dispensing pump



1,633,355 June 21, 1927- R. L. WHITE ANTISUBSTITUTE LIQUID DISPENSING PUMP Filed Feb. 11, 1927 W/ille IN KEN TOR.

A TTORNE Y.

Patented June 21 1927.

ROBERT L. WHITE, OF LISBON, TEXAS.

ANTIS'UBSTITUTE LIQUID-DISPENSING PUMP.

Application filed February 11, 1927. Serial No. 167,406.

This invention relates to liquid dispensing v apparatus, and it refers more particularly to such apparatus used for dispensing lubricating oils and gasoline, and its principal object resides in the provision of a dispensing pump so constructed that substitution of its contents for an inferlor product may be prevented. for the protection of the motor.- ist, andonly those authorizedmay be enabled to refill the same.

The invention further aims among its obj ects to provide a greater protection against the insertion into the tank of chemicals,

Y water, or other adulterants which may affect the quality of its contents and without'the knowledgeiof the filling agent and the con- SllIIlB v pany, an inferior Still further, the invention comprehends a simple and eflicient improvement of the character designated, adding little cost to the usual tank, yet not affecting the symmetry or. appearance thereof.

With these foremost objects in view, the invention has particular reference to its salient features of construction and arrangement of parts by which the foregoing objects are attained, and which will be de-,

scribed in detail in the following descrip tion and illustrated in .the annexed drawings, wherein:

Figure 1 represents a perspective view of 'a dispensing pump upon which the invention is shown.

Figure 2 is a fragmentary front view of the pump, on which the invention is shown in cross-section.

. Figure 3 is a section taken laterally across the top of the container drum showing the locking means for the accessories, and

Figure 4 is a fragmentary detail view of the said locking means.

Continuing now more in detail with the drawings, it may be first mentioned that heretofore, and in cases where no precautions are taken, unprincipled garage and filling station attendants have found a considerable profit bysubstitutin for the advertised and well established pro uct ofa petroleum comgrade of product for the popular price paid for the high grade o1ls, without the knowledge of the concern whose products are being substituted, nor the consumer who has been led to believe that he is being supplied with the high grade product. -It is consequently the object of the invention, as heretofore stated, to minimizeposslbilities' in this regard, and to so protect the I consumer against deception.

The drum 1 does not materially depart fromtheusual construction, aside however from a depression 2 made adjacent the point where the pump 3 and filler pipe 4 enter thedrum head. This depression 1s covered by a hinged door' or plate 5, and while the lock 7 shown thereon is a pad lock 6, an character of combination lock may be emp oyed without any material increase in cost.

In the bottom of the depression, a pair of 7 set screws 7 are screwed in such a manner as to enter an annular channel or groove 8 around the pipes 3 and 4:. A packing washer 9 is supplied for the openings through which the screws 7 are passed to prevent leakage. It is obviously impossible to gain access to the interior of the tank without first opening the door 5 and releasing the screws 7, and only-those authorized are supposed to possess the means by which this door may be opened. The advantages described are proposed to render efi'ective the principal feature of the invention presently to be described, by which it is made impossibleor difiicult to fill the tank through the drip opening.

In'pumps of a certain popular design, the

drain tube 10 is constructed in the manner ter to insert into the tank .1 by way of the pipe 10 imitation oils and adulterants, consequently, the invention providesa channel member 12, aflixed to or integral with the nozzle 11 and curved to conform with the path of travel of the drain pipe head 13, which, as apparent in Figure 2, is enlarged to slide upon the inwardly turned flange 14 formed underneath the channel 12. This channel need not be more than a few inches in length, that is of suflicient length to permit a receptacle to be readily placed beneath the nozzle 11.

Obviously, the channel 12 will in no way hinder the drain pipe 10 in its movement, yet making itiimpossible to insert any foreign substance therethrough into the tank 1.

ing a curved channel. member aflixed to said nozzle and arranged to restrict the opening in said drain pipe when moved away from said nozzle. 7

2. In a liquid dispensing tank provided with a pump and a oscillatable drain pipe "communicating with the discharge nozzle,

the combination with a concealed locking means for the openings in said tank, a covering for the receiving end-of said drain pipe afiixed to said nozzle and comprising a channel member so curved to conform with the path of travel of said pipe when moved away from said nozzle. i

3. In a liquid dispensing tank provided with a pump and a drain pipe rotatable with respect to the latter, the combination with concealed locking means for the openings in said tank; a covering for the receiving end of said drain pipe comprising a curved channel member aflixed to said nozzle and extending laterally therefrom to slidably embrace said drain pipe receiving end to permit the same to be unrestrictedly moved with respect to said nozzle.

4. In a' liquid dispensing tank provided with an upright pump and a rotatable drain pipe communicating with the discharge nozzle of said pump; the combination with concealed locking means for the filler and pump opening in said tank, a permanent covering for the receiving end of said drain pipe comprising a member aflixed to said nozzle and protruding therefrom on a curved horizontal plane to restrict the opening in said drain pipe during its displacement with respect to said nozzle.

5. In a liquid dispensing pump, including with a tank and a drain pipe oscillatable to and away from the discharge nozzle of said pump; the combination with a locking means for the covered opening in said tank, a permanent covering for the receiving end of said drain pipe comprising a member affixed to the nozzle of said pump and curved on a horizontal plane to restrict the opening in said pipe during its displacement with respect to said nozzle.

In testimony whereof I afiix my signature.

ROBERT L. WHITE. 

